Meg Greve - Speakers
Here you can read online Meg Greve - Speakers full text of the book (entire story) in english for free. Download pdf and epub, get meaning, cover and reviews about this ebook. year: 2014, publisher: Rourke Educational Media, genre: Children. Description of the work, (preface) as well as reviews are available. Best literature library LitArk.com created for fans of good reading and offers a wide selection of genres:
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Speakers: summary, description and annotation
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Speakers have only one job. To deliver sound! Whether its your iPod, radio, or television, without speakers you wouldnt be able to hear anything. From currents, to magnets, coils and cones, and amplification and volume, all the intricate parts of a speaker are addressed to show how they make sound possible. So, put your headphones on and start listening to your favorite sounds! This book will allow students to plan and conduct investigations to provide evidence that vibrating materials can make sound and that sound can make materials vibrate.
Meg Greve: author's other books
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Speakers — read online for free the complete book (whole text) full work
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Meg Greve  rourkeeducationalmedia.com |  Scan for Related Titlesand Teacher Resources |
| Before & After Reading Activities | Level: F Word Count: 229 Words 100th word: through |
Be sure to talk about the text features such as headings, Table of Contents, glossary, bolded words, captions, charts/diagrams, or Index.3.Have students read the first page of text with you then have students read the remaining text.4.Strategy Talk use to assist students while reading.
- Get your mouth ready
- Look at the picture
- Thinkdoes it make sense
- Thinkdoes it look right
- Thinkdoes it sound right
- Chunk it by looking for a part you know5.Read it again.6.After reading the book complete the activities below.Content Area VocabularyUse glossary words in a sentence. amplify cone current electromagnet vibrates volume After Reading: Comprehension and Extension Activity After reading the book, work on the following questions with your child or students in order to check their level of reading comprehension and content mastery. 1.What are the main parts of a speaker? (Summarize)2.What is the purpose of the cone inside the speaker? (Asking questions)3.In what ways do you use speakers? (Text to self connection)4.What does amplify mean? (Summarize)Extension Activity Think about all the ways you use speakers in your life. How do they enhance your life? Now think about other places that use speakers. What would happen if there werent any speakers at sporting events or concerts? How would we hear a presidential candidate give a speech? Create a table and identify the pros and cons of speakers.
When you turn on your radio, iPod, or television, speakers deliver the sound your device makes. 
Inside the speakers many parts work together to produce sound. 
Speakers have two kinds of magnets. One magnet cannot move. 
magnet
The electromagnet is a wire coil that when the electric current passes through it. 
coil shape
The coil is attached to a cone. coil shape The coil is attached to a cone. The cone moves. It vibrates back and forth. The makes the sound louder, sending the sound out into the air. You may not be able to see sound waves, but if they are loud enough, you can feel the vibrations in the floor, walls, or on the speaker.
cone shape
Speakers by turning it up or down. If your speakers are too loud, you can damage your ears and even lose your hearing.
Speakers allow us to listen to music, movies, books, and even the sound of a lions roar. 2.Turn the volume on your MP3 to the highest level. 3.Put your MP3 player in the bowl.It will be even louder.
The shape of the bowl is like the cone on a speaker. The shape of the bowl is like the cone on a speaker. It amplifies the sound! 
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